Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-26
Phys.Rev.D83:114034,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
37 pages, 33 figures
Scientific paper
10.1103/PhysRevD.83.114034
We consider the central exclusive production of $q\bar{q}$ pairs and Higgs boson at proton-proton collisions at LHC. The amplitude for the process is derived within the $k_{\perp}$-factorization approach and considered in different kinematical asymptotics, in particular, in the important high quark transverse momenta and massless quark limits. Quark helicity and spin-projection amplitudes in two different frames are shown in extenso. Rapidity distributions, quark jet $p_{\perp}$ distributions, invariant $q\bar{q}$ mass distributions, angular azimuthal correlations between outgoing protons and jets are presented. Irreducible $b{\bar b}$ background to the central exclusive Higgs boson production is analyzed in detail, in particular how to impose cut to maximize signal-to-background ratio.
Maciula Rafal
Pasechnik Roman
Szczurek Antoni
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